CN102320736A - Optical fiber wire-drawing furnace gas stabilization control device and control method thereof - Google Patents
Optical fiber wire-drawing furnace gas stabilization control device and control method thereof Download PDFInfo
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- CN102320736A CN102320736A CN201110304506A CN201110304506A CN102320736A CN 102320736 A CN102320736 A CN 102320736A CN 201110304506 A CN201110304506 A CN 201110304506A CN 201110304506 A CN201110304506 A CN 201110304506A CN 102320736 A CN102320736 A CN 102320736A
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Abstract
The invention discloses an optical fiber wire-drawing furnace gas stabilization control device which comprises a wire-drawing furnace; a rod-diameter gauge is mounted above the wire-drawing furnace; a gas sealing device with variable apertures is mounted at a furnace mouth upper cover plate between the rod-diameter gauge and the wire-drawing furnace; the rod-diameter gauge is regulated and controlled by a PLC control feedback system; the gas sealing device is regulated and controlled by a PLC control program. The invention also discloses a control method of the optical fiber wire-drawing furnace gas stabilization control device. The optical fiber wire-drawing furnace gas stabilization control device of the invention can prevent the generation of a gas flow disorder phenomenon due to insufficient furnace mouth gas sealing caused by excessive rod curvatures, can increase the stability of gas flow in the furnace, and reduce the fluctuation of optical fiber diameters.
Description
Technical field
The invention belongs to the optical fiber manufacturing, be specifically related to a kind of drawing optical fibers furnace gases stabilization control device and control method thereof.
Background technology
The flow controlling method of air of present fibre drawing furnace mainly is the tightness system assurance through fire door; But this texture ratio is more fixing; Be not easy in the production process regulate, card is excellent easily in (such as greater than 0.5% o'clock) meeting when the prefabricated rods sinuousness is bigger, and causes the air seal set of fire door to lose efficacy; Cause gas stream in the stove to be upset and form turbulent flow, and then cause the interior graphite piece scaling loss of stove to cause unnecessary loss.
Summary of the invention
Goal of the invention: the objective of the invention is in order to solve the deficiency of above-mentioned prior art, a kind of drawing optical fibers furnace gases stabilization control device that can stable fiber wire drawing furnace gas is provided.
Another object of the present invention provides the control method of this drawing optical fibers furnace gases stabilization control device.
Technical scheme: a kind of drawing optical fibers furnace gases stabilization control device; Comprise fiber drawing furnace; Excellent cable diameter gauge is equipped with in said fiber drawing furnace top; The gas enclosed appts of variable aperture is equipped with at fire door upper cover plate place between said excellent cable diameter gauge and the fiber drawing furnace, and said excellent cable diameter gauge is through the program calling and controlling of PLC controlled feedback system, and said gas enclosed appts is through the regulation and control of PLC sequence of control.
As optimization, said gas enclosed appts is the gas enclosed appts that spiral variable aperture is housed.
As optimization, said gas enclosed appts is the iris shutter tightness system.
As optimization, said PLC controlled feedback system links to each other through connection line with said excellent cable diameter gauge.
A kind of control method of the furnace gases of drawing optical fibers according to claim 1 stabilization control device may further comprise the steps:
1, in the PLC sequence of control, write software control procedure, and the input Control-Menu;
2, prefabricated rods is installed through excellent cable diameter gauge is middle, when preparing the beginning drawing optical fiber, start the PLC sequence of control;
3, prefabricated rods is through the average rod of excellent cable diameter gauge test footpath, during test in the face of equipment from about measure to former and later two directions, all rod footpaths of making even feed back in the PLC controlled feedback system during bear of this rod footpath;
4, the rod footpath data of said PLC controlled feedback systems analysis prefabricated rods are compared according to the diameter information of the prefabricated rods of prior input, draw optimum enclosed appts internal diameter size;
5, above-mentioned enclosed appts dimension information feeds back on the gas enclosed appts of variable aperture through the PLC sequence of control; The requirement that is provided with according to the adjustment position; After reaching desired location, begin to adjust the size of tightness system, so that can adapt to the variation of prefabricated rods size.
Beneficial effect: drawing optical fibers furnace gases stabilization control device of the present invention is through the excellent cable diameter gauge feedback prefabricated rods rod footpath information on the fiber drawing furnace; Through the PLC gear fire door enclosed appts is regulated, can be avoided because the excessive generation that causes the air turbulence phenomenon that fire door air seal deficiency causes of the sinuousness of rod.Avoid the unnecessary wasting of resources (like undesired loss of graphite piece in the stove etc.); Can improve simultaneously the stability of gas stream in the stove, reduce fibre diameter fluctuations, can make the diameter fluctuation of optical fiber be reduced to 0.2um; Improve optical fiber quality, play important effect for the technology progress of optical fiber industry.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
As shown in the figure; A kind of drawing optical fibers furnace gases stabilization control device; Fire door upper cover plate on fiber drawing furnace top has been installed iris shutter tightness system 2; This iris shutter tightness system 2 is regulated and control by the PLC sequence of control, and excellent cable diameter gauge 5 is installed above iris shutter tightness system 2, and excellent cable diameter gauge 5 is connected in the PLC controlled feedback system 7 through connection line 6.
Principle of work: prefabricated rods 1 is through excellent cable diameter gauge 5, and fusion draw goes out optical fiber 4 in fiber drawing furnace 3.During ordinary production; The diameter of rod cable diameter gauge 5 monitoring prefabricated rods 1; The diameter signal of prefabricated rods 1 is transferred in the PLC controlled feedback system 7; The rod footpath data of this system analysis prefabricated rods 1 are compared according to the diameter information of the prefabricated rods 1 of prior input, draw optimum enclosed appts 2 internal diameter sizes.This dimension information is fed back on the iris shutter tightness system 2 through the PLC sequence of control; Iris shutter tightness system 2 changes along with the variation of prefabricated rods 1 rod footpath measuring result; Be adjusted into optimum diameter; Thereby guarantee that sealing effectiveness is good in prefabricated rods 1 production process, guarantee the sealing of fire door.
It is following to write software control procedure in the PLC sequence of control:
Set prefabricated rods rod footpath according to from small to large a scope, the variable aperture plant bulk of stove is set suitable internal diameter according to the size variation in prefabricated rods rod footpath according to certain rule; In drawing process, prefabricated rods rod footpath changes, and has the position in program used for calculating change point distance variable aperture what are; When reaching this location point, just according to the governing speed of setting, but adjustment reducing device size; Adapt to the rod footpath of prefabricated rods, guarantee normal wire drawing.
| Prefabricated rods rod footpath (unit: mm) | 100 | 110 | 120 | 130 | 140 | 150 | 160 |
| Variable aperture size (unit: mm) | 101 | 111 | 122 | 132 | 142 | 153 | 163 |
| Governing speed | 1mm/min | 1mm/min | 1mm/min | 1mm/min | 1mm/min | 1mm/min | 1mm/min |
| The adjustment position | At present excellent position+Xmm | At present excellent position+Xmm | At present excellent position+Xmm | At present excellent position+Xmm | At present excellent position+Xmm | At present excellent position+Xmm | At present excellent position+Xmm |
Claims (5)
1. drawing optical fibers furnace gases stabilization control device; Comprise fiber drawing furnace (3); It is characterized in that: excellent cable diameter gauge (5) is equipped with in said fiber drawing furnace (3) top; The gas enclosed appts (2) of variable aperture is equipped with at fire door upper cover plate place between said excellent cable diameter gauge (5) and the fiber drawing furnace (3), and said excellent cable diameter gauge (5) is through the program calling and controlling of PLC controlled feedback system, and said gas enclosed appts (2) is through the regulation and control of PLC sequence of control.
2. according to the said drawing optical fibers furnace gases of claim 1 stabilization control device, it is characterized in that: said gas enclosed appts (2) is for being equipped with the gas enclosed appts of spiral variable aperture.
3. according to claim 1 or 2 said drawing optical fibers furnace gases stabilization control devices, it is characterized in that: said gas enclosed appts (2) is the iris shutter tightness system.
4. according to the said drawing optical fibers furnace gases of claim 1 stabilization control device, it is characterized in that: said PLC controlled feedback system links to each other through connection line (6) with said excellent cable diameter gauge (5).
5. control method of drawing optical fibers furnace gases stabilization control device according to claim 1 is characterized in that: may further comprise the steps:
In the PLC sequence of control, write software control procedure, and the input Control-Menu;
Prefabricated rods through installing in the middle of the excellent cable diameter gauge, when preparing the beginning drawing optical fiber, is started the PLC sequence of control;
Prefabricated rods is through the average rod of excellent cable diameter gauge test footpath, during test in the face of equipment from about measure to former and later two directions, all rod footpaths of making even feed back in the PLC controlled feedback system during bear of this rod footpath;
The rod footpath data of said PLC controlled feedback systems analysis prefabricated rods are compared according to the diameter information of the prefabricated rods of prior input, draw optimum enclosed appts internal diameter size;
Above-mentioned enclosed appts dimension information feeds back to through the PLC sequence of control on the gas enclosed appts of variable aperture, and the requirement that is provided with according to the adjustment position after reaching desired location, begins to adjust the size of tightness system, so that can adapt to the variation of prefabricated rods size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110304506A CN102320736A (en) | 2011-10-10 | 2011-10-10 | Optical fiber wire-drawing furnace gas stabilization control device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110304506A CN102320736A (en) | 2011-10-10 | 2011-10-10 | Optical fiber wire-drawing furnace gas stabilization control device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN102320736A true CN102320736A (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201110304506A Pending CN102320736A (en) | 2011-10-10 | 2011-10-10 | Optical fiber wire-drawing furnace gas stabilization control device and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081577A (en) * | 2018-09-20 | 2018-12-25 | 徐亚琴 | A kind of fibre drawing furnace |
| CN113336434A (en) * | 2021-05-20 | 2021-09-03 | 威海威信光纤科技有限公司 | Optical fiber drawing furnace capable of automatically adjusting size of sealing device |
| CN115490418A (en) * | 2022-09-06 | 2022-12-20 | 烽火通信科技股份有限公司 | Gas sealing device and gas sealing method for smelting-shrinkage furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370355A (en) * | 1981-08-10 | 1983-01-25 | Western Electric Company, Inc. | Methods of and apparatus for coating lightguide fiber |
| CN1500754A (en) * | 2002-11-13 | 2004-06-02 | ס�ѵ�����ҵ��ʽ���� | Method of drawing optical fiber and apparatus for implementing the method |
| CN2927077Y (en) * | 2005-11-17 | 2007-07-25 | 江苏亨通光纤科技有限公司 | Gas protector of optical-fiber curing furnace |
| CN101798172A (en) * | 2010-02-09 | 2010-08-11 | 中天科技精密材料有限公司 | Extending device and method of optical fiber mother material |
| CN202297379U (en) * | 2011-10-10 | 2012-07-04 | 中天科技光纤有限公司 | Gas stability control device for fiber drawing furnace |
-
2011
- 2011-10-10 CN CN201110304506A patent/CN102320736A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370355A (en) * | 1981-08-10 | 1983-01-25 | Western Electric Company, Inc. | Methods of and apparatus for coating lightguide fiber |
| CN1500754A (en) * | 2002-11-13 | 2004-06-02 | ס�ѵ�����ҵ��ʽ���� | Method of drawing optical fiber and apparatus for implementing the method |
| CN2927077Y (en) * | 2005-11-17 | 2007-07-25 | 江苏亨通光纤科技有限公司 | Gas protector of optical-fiber curing furnace |
| CN101798172A (en) * | 2010-02-09 | 2010-08-11 | 中天科技精密材料有限公司 | Extending device and method of optical fiber mother material |
| CN202297379U (en) * | 2011-10-10 | 2012-07-04 | 中天科技光纤有限公司 | Gas stability control device for fiber drawing furnace |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081577A (en) * | 2018-09-20 | 2018-12-25 | 徐亚琴 | A kind of fibre drawing furnace |
| CN109081577B (en) * | 2018-09-20 | 2021-10-01 | 湖南玖芯光电科技有限公司 | Optical fiber drawing furnace |
| CN113336434A (en) * | 2021-05-20 | 2021-09-03 | 威海威信光纤科技有限公司 | Optical fiber drawing furnace capable of automatically adjusting size of sealing device |
| CN115490418A (en) * | 2022-09-06 | 2022-12-20 | 烽火通信科技股份有限公司 | Gas sealing device and gas sealing method for smelting-shrinkage furnace |
| CN115490418B (en) * | 2022-09-06 | 2023-11-03 | 烽火通信科技股份有限公司 | Gas sealing device and gas sealing method for melting shrinkage furnace |
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Application publication date: 20120118 |